fix: app-lab cli tutorial, remove wrong default password mention

Author: 91volt

content/software/app-lab/tutorials/03.cli/apps-lab-cli.md

@@ -31,12 +31,14 @@ You can also access the board via SSH, which is typically installed on your syst
 
 >Note that it may take up to a minute for the device to appear after connecting it.
 
-3. Run `adb shell`. If you have not set up your board prior to this via the Arduino App Lab, you may be required to provide a password, which is `arduino`.
-4. You should now be inside your board's terminal.
+1. Run `adb shell`. 
+2. You should now be inside your board's terminal.
 
     ![Terminal on the board.](assets/board-terminal.png)
 
-5. You are now able to run commands via the terminal on your board! To exit from the terminal, simply type `exit`.
+3. You are now able to run commands via the terminal on your board! To exit from the terminal, simply type `exit`.
+
+>Note: If you have not set up your board prior to this via the Arduino App Lab, the first time you run a command that requires authentication (such as `sudo`), you will be prompted to create a new password.
 
 ## Connect via SSH